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Superior Reliability & Performance • www.Coherent.com • LMC.sales@coherent.com
Model OP-2/LM-2 UV OP-2/LM-2 VIS OP-2/LM-2 IR
Detector Material Silicon Germanium
Wavelength Range (µm) 0.25 to 0.4 0.4 to 1.06 0.8 to 1.80/0.8 to 1.5
1
Power Range 10 nW to 30 mW 10 nW to 50 mW 10 nW to 10 mW
Resolution (nW) 1
Active Area Diameter (mm) 6 7.9 5
Dimensions (mm) Ø29 x 54 (1.1 x 2.1 in.)
Calibration Uncertainty (%) ±8 ±5 ±4.5
Calibration Wavelength (nm) Monochromator calibration across wavelength range
Cooling Method Air-cooled
Connector Type OP DB-25/LM DB-25
Cable Length (m) 1.8
Part Number
OP-2 1098401 1098313 1098416
LM-2 1098390 1098298 1098342
These high-sensitivity semiconductor sensors are ideal for CW laser
measurements in the nW to low mW level. They typically saturate in the
10 to 50 mW level, depending upon the model. For linear operation up to
a maximum of 5 Watts, an optional 1000:1 attenuator is used.
Adjustable
108-171 mm
(4.25-6.73 in.)
28.7 mm
(1.13 in.)
Ø7.9 Vis
(0.31 in.)
Ø6.0 UV
(0.24 in.)
Ø5.0 IR
(0.20 in.)
0.75-32 TPI*
6.35 mm
(0.25 in.)
54 mm
(2.125 in.)
19 mm
(0.75 in.)
Laser
Cross-
Reference
Index
POWER
& ENERGY
Power
Sensors
Energy
Sensors
Custom
& OEM
BEAM
DIAGNOSTICS
CALIBRATION
& SERVICE
INDICES
Product
Name
Index
Power
& Energy
Meters
Device
Specications
1
OP-2 IR and LM-2 IR have different spectral ranges.
Fiber-Optic Connector
Adapters
1000:1 Attenuator
OP-2 UV/OP-2 VIS/OP-2 IR
LM-2 UV/LM-2 VIS/LM-2 IR
Accessories
* Threads Per Inch
Features
• Si, Ge photodiodes
• Spectral range: 250 nm to 1800 nm
• Fiber-optic connector (optional, see page 38)
• 1000:1 attenuator for measurement to 5W
(optional, see page 38)
Model OP-2/LM-2
10 nW to 50 mW, CW
High-Sensitivity Optical Power Sensors
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